Abstract: System and method for adjusting side mirrors capture, by a primary camera, a facial image of a driver; estimate a 3D eye location with respect to a 3D coordinate of the primary camera based on the captured facial image; map the estimated 3D eye location to a respective set of pitch and yaw of the side mirror based on a look up table; and rotate the side mirror to a target position in accordance with the respective set of pitch and yaw. The lookup table includes a plurality of rows, each containing a pair of a key and a set of values. The key is a set of three parameters of 3D line of locations where the driver can observe an optimal view behind the vehicle, and the set of values includes a set of pitch and yaw of the side mirror corresponding to the 3D line of locations.

Abstract: A method for adjusting a side mirror of a vehicle includes capturing, by a primary camera provided in front of a driver of the vehicle, a facial image of the driver; estimating a 3D eye location with respect to a 3D coordinate of the primary camera based on the captured facial image; mapping the estimated 3D eye location to a respective set of pitch and yaw angles of the side mirror based on a lookup table; and rotating the side mirror to a target position in accordance with the respective set of pitch and yaw angles. The lookup table includes a plurality of rows, each row containing a pair of a key and a set of values. The key is a 3D eye location, and the set of values includes a set of pitch and yaw angles of the side mirror corresponding to the 3D eye location.

Abstract: An improvement in a device for the combination of two alternating signals of the same frequency in which two microwave combination devices are associated with two phase shifters to combine the two signals. By coupling the two phase shifters according to a particular coupling relationship, the two alternating signals are combined regardless of the load presented at one of the these two signals.

Abstract: An irradiation apparatus comprising a fluid-tight enclosure in which are located a linear electron accelerator, a magnetron supplying a high frequency signal, means for injecting this high frequency signal into the accelerating structure, means for supplying voltage to the magnetron and the accelerator. A magnetic deflecting system can be associated with the linear accelerator for deflecting the accelerated electrons towards a target emitting X-rays. Cooling systems are provided inside the enclosure 1, in particular for cooling the magnetron.

Abstract: A compact accelerating structure comprises an accelerating section and a complementary section which may be used as a bunching section and/or a preaccelerating section, this complementary section being constituted by a first cavity and a second cavity joined to one another and electromagnetically coupled with one another in a direct manner, the second cavity, which is adjacent to the accelerating section, having a length L and being electromagnetically coupled to the first cavity and to the accelerating section in such a manner that the electromagnetic accelerating field is zero in this second cavity.

Abstract: An accelerating structure for a linear particle accelerator operating in the progressive wave mode or in the stationary wave mode and comprising at least one accelerating section and a complementary bunching or pre-accelerating section formed by a resonant cavity C of the "reentrant" type magnetically coupled with the first cavity of the accelerating section by means of a coupling iris, the cavity C having a length L=(2m+1).lambda..sub.o/4 and the distance D separating the interaction spaces of the cavity C and the first cavity of the accelerating section being equal to D=(2k+n/2+.alpha.).pi..beta..lambda..sub.o, with O.ltoreq..alpha..ltoreq.1/4, n and k being integers, .beta. being the reduced velocity v/c of the particles and .lambda..sub.o being the operating wave length of the accelerator.

Abstract: A controlled-frequency arrangement for feeding a linear charged particle accelerator and enabling the power reflected by the accelerator toward the microwave generator feeding it to be minimized when the accelerator is loaded by the particle beam. The feeding arrangement comprises means for obtaining a continuous signal v of which the amplitude is proportional to the phase shift .DELTA..phi. which may exist between the microwave signal injected into the accelerator and the signal stored in the accelerator, and for comparing this signal v with a variable reference signal v.sub.4 to obtain an error signal v - v.sub.r which, when applied to a frequency controlling system, causes the frequency F of the microwave generator associated with the accelerator to be suitably varied, this variation in frequency .alpha.F enabling the phase shift .alpha..phi. to be eliminated.

Abstract: A high-frequency focusing device making it possible to achieve suitable horizontal and vertical focusing of a beam of charged particles issued from a particle source located substantially at the center of a cyclotron, this device comprising pairs of focusing electrodes fixed to the edges of parallel plates forming each sector-shaped Dees of the cyclotron, each pair of electrodes being arranged in such a manner that the particle beam passes between them, these electrodes which project into the acceleration space e of the cyclotron, making it possible to compensate for lack or excessive vertical focusing brought about by the magnetic field developed in the acceleration space e.

Abstract: The present invention relates to an hyperfrequency resonant system designed to accelerate a beam of charged particles, and comprising at least a first resonant cavity (or a group of resonant cavities similar to this first cavity) tuned at a fundamental frequency F and excited by means of an external electro-magnetic energy source and a resonant element which is, for example, a second resonant cavity tuned at harmonic frequency 2F and excited by means of the bunched particle beams. The invention is applicable, for example, to particle accelerators of the "microtron" kind.

Abstract: A particle accelerator for obtaining high energy particle beams, comprises an accelerating structure S.sub.A, one mirror or two mirrors constituted with magnetic achromatic and stigmatic deviators and a source K of particles located at the entry of the accelerating structure S.sub.A and having an annular shape allowing the accelerated particles having passed twice through the accelerating structure S.sub.A to cross the source K, the axis of the source K being coincidental with the axis of the accelerating stucture S.sub.A. Magnetic fields are determined in such a manner that the mirrors totally reflect the particles having a predetermined energy level and totally transmit the particles having an energy level higher than this predetermined energy level.

Abstract: Multiperiodic linear accelerating structures comprising a succession of cylindrical accelerating cavities C.sub.a having a revolution axis X.sub.1 X.sub.2, and being coupled to each other by cylindrical coupling cavities C.sub.c having the axis X.sub.1 X.sub.2 as revolution axis, which coincides with the mean path of the beam of the particles to be accelerated, the radius R.sub.c of the coupling cavities C.sub.c being substantially equal to the radius R.sub.a of the accelerating cavities C.sub.a. Accelerating and coupling cavities are constituted by a stack of elements easy to machine and braze together.